I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
scanner scunner skinner sickener skinnier squinnier signer seigneur seigneury signor signior signore signori signory
canner scanner chicaner caner cannery cannier canoer conner cunner gunner gainer gunnery regainer scunner skinner skinnier squinnier chicanery